Improved machine for making paper



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Laws Patent No. 90,898, dazed Jun@ 1,1869.

IMPROVED MACHINE FOR MAKING PAPER The Schedule :efen'edto in these Letters Patent and making part of the same.

Be' it known that I, CHARLES BANVALKENBURGH, of Valatie, in the town of Kinderboek, county of Columbia, and State of New York,'have invented a new and improved Machine for Making Paper; and I do `hereby declare that the following is a full, clear, and

exact description of the construction and operation of the same, reference being\had to the annexeddrawings, making a part of this specification, in which- Figure 1 is a pel'spective view of my machine at- `tached to the pulp-vat.

Figure 2 is a side elevation of same, opposite to the side shown in iig. 1.

The object of this invention is to form a continuous sheet of well-pressed pulp-paper of any kind, with only one pair of press-rolls, and without employing pressfelts or row-cloth, and with much less expense in both labor and machinery than is now required.

Amy invention, I will proceed to describe its construction and opeiation.

My machine consists, for the most part, of the forming-cylinder B, the coucher and the two press-rolls or cylinders E E', with their doctors D D'.

To the pulp-vat A, I attach the frame F F F, Sac., incliningr it backward toward or over the rear end of the vat, so that the water may drip freely from the rolls E Each of these rolls is provided with a doctor or scraper, D D", to keep them clean.

The coucher C is the only cylinder in the machine that is provided with a dress of any kind.

I dispense with at least thirteen yards of felts, which are used and requiredin all paper-making machines of the ordinary construction, and also with. the rowcloth altogether.

To do this,l of course dispense with all the machinery heretofore employed between the vat A and the first drier, except what is herein described, to wit, the forming-cylinder, th'e coucher, and the two pressrolls, with their respective doctors.

From the press-roll or cylinder E', the paper is earried over the roll e, directly-to the first drier, and as there areno felts to make the surface ofthe paper rough, or to impress it withl their inequalities, there is of course no need ofthe second rolls to make it smooth, but it is delivered to the first drier as well pressed and as smooth as it is with all the intermediate machinery commonly employed.

To enable those skilled in the art to make and use' ByA the usc of' the graduating or adjusting-screws a c' and l) b', the rollsl EE are adjusted closer to or more remote from each other, as required, their journals resting in the blocks d d', which slide in the frame F F,

The'pulp, being taken up by the reticulated or wirecloth cylinder B,.is received by the coucher C, which is provided with a jacket of felt, or any equivalent dress, and conveyed to the first press-roll, E, to which it adheres, until it reaches the roll E, on the under side, and is thence brought up-between the press-rolls `E and E', and carried over e immediately to the first drier. Ihe whole machine is operated by applying the power to the pulley G on shaft of press-roll E.

In .this manner a continuous sheet of well-pressed l paper of any kind is formed from the pulp, without first or second press-roll felts, and without row-cloth.

rlhis machine will not require half theA power, nor more than half the labor to operate it required to operate any of thepaper-machines now in use. It riot only. saves the cost of i'elts and row-cloth, but the time and labor required to replace and to clean them.

Any kind of paper.(straw, print, writing, 85e.) may be made with this machine as well as with any othell now used. f

What I claim as my invention, and desire lto secure by Letters Patent of the United States, is-

1. Making pulp-paper of any kind, by conveying it from the wat A to the first drier without first or second press-felts or row-cloth, substantially in the manner herein set forth.

2. The. combination and arrangement of formingcylinder B, coucher C, and press-rolls E E', substantially in the manner and for the purpose herein de-l scribed.

3. sloping or inclining the press-rolls E E in relation to the pulp-vat A, and to each other, substantially in the manner and for the purpose herein set forth.

4. 'lhe construction and arrangement of frame F F F, 85e., for the support of the rolls E E and coucher C, in the manner or substantially in the manner set forth. r

CHARLES B. VAN VALKENBURGH.

NVitncsses f ALEX. S. Ro WLEY, C. A. VAN DEUSEN. 

